Add bagList expand(bag: Bag) (#4731)

packages/api-derive/src/bagsList/getExpanded.ts

@@ -4,19 +4,25 @@
 import type { Observable } from 'rxjs';
 import type { BN } from '@polkadot/util';
 import type { DeriveApi } from '../types';
-import type { Bag } from './types';
+import type { Bag, BagExpanded } from './types';
 
 import { map, switchMap } from 'rxjs';
 
 import { memo } from '../util';
 
-export function getExpanded (instanceId: string, api: DeriveApi): (id: BN | number) => Observable<Bag> {
-  return memo(instanceId, (id: BN | number): Observable<Bag> =>
+export function expand (instanceId: string, api: DeriveApi): (bag: Bag) => Observable<BagExpanded> {
+  return memo(instanceId, (bag: Bag): Observable<BagExpanded> =>
+    api.derive.bagsList.listNodes(bag.bag).pipe(
+      map((nodes) => ({ ...bag, nodes }))
+    )
+  );
+}
+
+export function getExpanded (instanceId: string, api: DeriveApi): (id: BN | number) => Observable<BagExpanded> {
+  return memo(instanceId, (id: BN | number): Observable<BagExpanded> =>
     api.derive.bagsList.get(id).pipe(
-      switchMap((base) =>
-        api.derive.bagsList.listNodes(base.bag).pipe(
-          map((nodes) => ({ ...base, nodes }))
-        )
+      switchMap((bag) =>
+        api.derive.bagsList.expand(bag)
       )
     )
   );